...have there been others? I would think there must have. Anyway, can you guess what this guy's rap name is?
Yep. Kid Apocalypse.
And he made a music video at Emerald City Comicon that was pretty tight, entitled "Came from the Chain" and starring Deadpool's butt-cheeks and other similar cosplayers.
Watch it after the jump. I only wish it were longer, and I rarely say that about YouTube videos.
h/t Chris J